#include <stdio.h>

#define LENGTH 10L
#define WIDTH 5U
#define NEWLINE '\n'

int main(){
    const int L=10;
    const float W=5E-1;
    const char NL='\n';
    int area;
    area=LENGTH*WIDTH;
    int area2=L*W;
    printf("value of area: %d\n",area);
    printf("%c",NEWLINE);
    printf("value of area2: %d\n",area2);
    printf("%c",NL);
    return 0;
}

